Note: This's an official strap only .. does not include the Whoop 4.0 fitness device.

Product Features:

• New SportFlex strap for Whoop made of silicone.

• Made from soft and comfortable high-quality silicone.

• Water-resistant .. sweat-resistant .. and stain-resistant.

• Designed for easy size adjustment.

• Great for sports or daily use.

• Band size ranges from 130 mm to 210 mm.

• Easy to clean .. you can use a lint-free cloth for both dry or wet cleaning.

Warranty: One Year